US11796294B2 - Precision decimal inch tape measure - Google Patents
Precision decimal inch tape measure Download PDFInfo
- Publication number
- US11796294B2 US11796294B2 US17/504,981 US202117504981A US11796294B2 US 11796294 B2 US11796294 B2 US 11796294B2 US 202117504981 A US202117504981 A US 202117504981A US 11796294 B2 US11796294 B2 US 11796294B2
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- US
- United States
- Prior art keywords
- decimal
- measurement
- inch
- scale
- tape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1003—Measuring tapes characterised by structure or material; characterised by layout or indicia
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/10—Measuring tapes
- G01B3/1056—Tape end arrangements, e.g. end-hooks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/002—Details
- G01B3/004—Scales; Graduations
- G01B3/006—Scales; Graduations having both coarse and fine graduation
Definitions
- the counting system based on 10 has many advantages, but it is not the system of measurement adopted by the United States during its formation. Even today with the widespread acceptance of the metric system, many measurements in the United States are still made in the US Customary and Imperial Systems that utilize yards, feet and inches to describe lengths.
- a system of measurement that is often used in today's engineering is known as the decimal inch which retains the standard inch as the unit but divides the inch by 10 ths which is often preferred over dealing with fractions especially with modern CAD and other machine interfacing measurements.
- Tape measures are useful in many ways as they allow the user to conveniently handle both short and long measurements since the tape is rolled and contained within a housing. Tape measures typically sold in the US come in United States customary units in feet and inches, metric units meters, centimeter and millimeters. Some tape measures include both by having US customary on one side and metric on the other. In order to bridge the gap between using the US system and decimals, many users rely on conversion tables that convert between fractions and the decimal equivalents. There is a need for a tape measure that allows a user to directly read decimal inches without the need to convert the measurement.
- a precision decimal inch tape measure has a housing that holds a retractable measurement tape.
- the retractable measurement tape has a hook on an end.
- the retractable measurement tape has an upper measurement scale defined along an upper portion of the retractable measurement tape and a lower measurement scale defined along a lower portion of the retractable measurement tape. Both the upper measurement scale and the lower measurement scale indicate inches divided into decimal divisions.
- the upper measurement scale includes a cumulative foot indicia and the lower measurement scale includes a cumulative inch indicia.
- the cumulative foot indicia is indicated in red and the cumulative inch indicia is indicated in black.
- the precision decimal inch tape measure is designed to work with drawings produced in decimal inches as is the preferred standard of CAD drawings. This instant invention works with cumulative feet and inches or with cumulative inches.
- FIG. 1 is a side view of a precision decimal inch tape measure according to an embodiment of the invention.
- FIG. 2 is a top view of the precision decimal inch tape measure shown in FIG. 1 .
- FIG. 3 is a close-up view of the portion shown in FIG. 2 .
- FIG. 4 is a top view of an extended portion of the precision decimal inch tape measure shown in FIG. 1 .
- FIG. 5 is a close-up view of the portion shown in FIG. 4 .
- a precision decimal inch tape measure 100 is shown having a retractable measuring tape 110 that is woundably contained within a housing 120 .
- Retractable measuring tape 110 has a hook member 115 at an end and at least one magnet 140 to aid in stability when measuring as is known in the art.
- a clip 135 and a tape lock 125 are also provided. Retractability is provided using a retracting mechanism (not shown) as is known in the art.
- FIGS. 2 and 3 a close-up view of a portion of retractable measuring tape 110 is shown having an upper measurement scale 150 and a lower measurement scale 155 .
- the standard inch is divided into 10 segments 160 to represent decimal inch divisions.
- Further divisions 168 are also decimal representations.
- a measurement 180 is shown as reading 1.34 inches read directly from upper measurement scale 150 .
- Other decimal divisions may be provided if increased precision is desired.
- FIGS. 4 and 5 a close-up view of an extended portion of retractable measuring tape 110 is shown with an inch indicia 165 and a cumulative foot indicia 175 on upper measurement scale 150 and a cumulative inch indicia 170 shown on lower measurement scale 155 .
- another measurement 185 is read as 1 foot 11.26 inches on upper measurement scale 150 and as 23.26 inches on lower measurement scale 155 .
- the traditional fractional lengths such as 1 ⁇ 8, 5/16, etc. are not used and the user directly reads the decimal inch measurements.
- Upper measurement scale 150 may be marked in a different color from the marking shown on lower measurement scale 155 .
- inch indicia 165 may be printed in red on upper measurement scale 150 and cumulative inch indicia 170 may be printed in black on lower measurement scale 155 to aid in readability and to reduce errors.
- precision is improved with decimal divisions since tenths of an inch is more precise than 1 ⁇ 8 ths of an inch or similarly, hundredths of an inch is more precise than 64 ths of an inch, etc.
- inches need to be in decimal form which under the prior art had to be converted with the aid of a conversion chart or table. The present invention eliminates the need for conversion as the decimal inches are read directly.
- housing 120 may be made of metal, plastic or other suitable material along with clip 135 and tape lock 125 .
- Retractable measuring tape 110 is generally made of flexible steel and channel shaped to provide stiffness when unrolled and to return to rolled shape when retracted as is known in the art. Of course other materials may be used.
Abstract
Description
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/504,981 US11796294B2 (en) | 2021-10-19 | 2021-10-19 | Precision decimal inch tape measure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/504,981 US11796294B2 (en) | 2021-10-19 | 2021-10-19 | Precision decimal inch tape measure |
Publications (2)
Publication Number | Publication Date |
---|---|
US20230122542A1 US20230122542A1 (en) | 2023-04-20 |
US11796294B2 true US11796294B2 (en) | 2023-10-24 |
Family
ID=85981399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/504,981 Active US11796294B2 (en) | 2021-10-19 | 2021-10-19 | Precision decimal inch tape measure |
Country Status (1)
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US (1) | US11796294B2 (en) |
Citations (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3484042A (en) * | 1966-07-25 | 1969-12-16 | Ernest W Hoffmeister | Calculating device |
US4149320A (en) * | 1977-08-10 | 1979-04-17 | Daniel Troyer | Building construction measuring tape |
US4247986A (en) * | 1975-11-18 | 1981-02-03 | Burroughs Robert C | Projection measuring scale |
US4551847A (en) * | 1983-04-08 | 1985-11-05 | Caldwell W Kenneth | Hand held digital measuring device |
US4696110A (en) * | 1986-06-06 | 1987-09-29 | Billy J. Hawkins, Sr. | Pipefitters tape measure |
US5433014A (en) * | 1994-09-19 | 1995-07-18 | Falk; David C. | Digital tape rule with transmitter |
US5746001A (en) * | 1995-05-19 | 1998-05-05 | Fisher; Delores | Teaching ruler |
US20040035012A1 (en) * | 2002-08-26 | 2004-02-26 | Moehnke Stephanie J. | Measuring device having symbols viewable in multiple orientations |
US20040055174A1 (en) * | 2002-09-20 | 2004-03-25 | Hirsch William J. | Tape measure with true and reduced scales for contractor's convenience and accuracy |
US20050155245A1 (en) * | 2004-01-20 | 2005-07-21 | Michael Panosian | Multi-tape measuring tool |
US20060143934A1 (en) * | 2004-12-30 | 2006-07-06 | Perry Betty F | Device for measuring and teaching scales of units |
US20070054247A1 (en) * | 2005-04-12 | 2007-03-08 | Francisco Castruita | Decimal-Point 1/16™ |
US20080261184A1 (en) * | 2007-04-18 | 2008-10-23 | Laura Eras | Measurement Instruction Apparatus |
US20100275456A1 (en) * | 2009-04-29 | 2010-11-04 | Peter Maxwell Lord | Digital measuring device |
US20130014400A1 (en) * | 2011-07-11 | 2013-01-17 | Kucik Mark G | Measurement Device |
US20150082644A1 (en) * | 2014-04-08 | 2015-03-26 | Marshall Cromwell | Measuring Devices with Integrated Measurement Conversions from Fraction-Inches to Decimal-Inches and Vice Versa |
US20150168119A1 (en) * | 2013-12-18 | 2015-06-18 | FWD Tools, LLC | Carpenter's Tape Measure Having Function Indicia |
US20150268024A1 (en) * | 2014-03-19 | 2015-09-24 | Pierre Brossard | High precision measuring tape |
US20160178338A1 (en) * | 2014-12-18 | 2016-06-23 | Victor S. Webb | Retractable measuring and cutting device |
US20170205218A1 (en) * | 2014-06-17 | 2017-07-20 | Sang Yeoul KIM | Tape measure having length marking function |
US20180172414A1 (en) * | 2015-07-13 | 2018-06-21 | Kazunori Kawashima | Scale |
US20190094001A1 (en) * | 2017-09-27 | 2019-03-28 | Stanley Black & Decker, Inc. | Tape rule assembly with linear optical encoder for sensing human-readable graduations of length |
US20200208954A1 (en) * | 2018-12-26 | 2020-07-02 | Fujitsu Component Limited | Measuring instrument |
-
2021
- 2021-10-19 US US17/504,981 patent/US11796294B2/en active Active
Patent Citations (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3484042A (en) * | 1966-07-25 | 1969-12-16 | Ernest W Hoffmeister | Calculating device |
US4247986A (en) * | 1975-11-18 | 1981-02-03 | Burroughs Robert C | Projection measuring scale |
US4149320A (en) * | 1977-08-10 | 1979-04-17 | Daniel Troyer | Building construction measuring tape |
US4551847A (en) * | 1983-04-08 | 1985-11-05 | Caldwell W Kenneth | Hand held digital measuring device |
US4696110A (en) * | 1986-06-06 | 1987-09-29 | Billy J. Hawkins, Sr. | Pipefitters tape measure |
US4811489A (en) * | 1986-06-06 | 1989-03-14 | Walker Don W | Pipe fitters tape measure strip |
US5433014A (en) * | 1994-09-19 | 1995-07-18 | Falk; David C. | Digital tape rule with transmitter |
US5746001A (en) * | 1995-05-19 | 1998-05-05 | Fisher; Delores | Teaching ruler |
US20040035012A1 (en) * | 2002-08-26 | 2004-02-26 | Moehnke Stephanie J. | Measuring device having symbols viewable in multiple orientations |
US20040055174A1 (en) * | 2002-09-20 | 2004-03-25 | Hirsch William J. | Tape measure with true and reduced scales for contractor's convenience and accuracy |
US20050155245A1 (en) * | 2004-01-20 | 2005-07-21 | Michael Panosian | Multi-tape measuring tool |
US6962002B2 (en) * | 2004-01-20 | 2005-11-08 | Olympia Group, Inc. | Multi-tape measuring tool |
US20060143934A1 (en) * | 2004-12-30 | 2006-07-06 | Perry Betty F | Device for measuring and teaching scales of units |
US20070054247A1 (en) * | 2005-04-12 | 2007-03-08 | Francisco Castruita | Decimal-Point 1/16™ |
US20080261184A1 (en) * | 2007-04-18 | 2008-10-23 | Laura Eras | Measurement Instruction Apparatus |
US20100275456A1 (en) * | 2009-04-29 | 2010-11-04 | Peter Maxwell Lord | Digital measuring device |
US20130014400A1 (en) * | 2011-07-11 | 2013-01-17 | Kucik Mark G | Measurement Device |
US20150168119A1 (en) * | 2013-12-18 | 2015-06-18 | FWD Tools, LLC | Carpenter's Tape Measure Having Function Indicia |
US9212882B2 (en) * | 2014-03-19 | 2015-12-15 | Pierre Brossard | High precision measuring tape |
US20150268024A1 (en) * | 2014-03-19 | 2015-09-24 | Pierre Brossard | High precision measuring tape |
US9823055B2 (en) * | 2014-04-08 | 2017-11-21 | Marshall Cromwell | Measuring devices with integrated measurement conversions from fraction-inches to decimal-inches and vice versa |
US20150082644A1 (en) * | 2014-04-08 | 2015-03-26 | Marshall Cromwell | Measuring Devices with Integrated Measurement Conversions from Fraction-Inches to Decimal-Inches and Vice Versa |
US20170205218A1 (en) * | 2014-06-17 | 2017-07-20 | Sang Yeoul KIM | Tape measure having length marking function |
US10082379B2 (en) * | 2014-06-17 | 2018-09-25 | Sang Yeoul KIM | Tape measure having length marking function |
US20160178338A1 (en) * | 2014-12-18 | 2016-06-23 | Victor S. Webb | Retractable measuring and cutting device |
US20180172414A1 (en) * | 2015-07-13 | 2018-06-21 | Kazunori Kawashima | Scale |
US10228227B2 (en) * | 2015-07-13 | 2019-03-12 | Kazunori Kawashima | Scale |
US20190094001A1 (en) * | 2017-09-27 | 2019-03-28 | Stanley Black & Decker, Inc. | Tape rule assembly with linear optical encoder for sensing human-readable graduations of length |
US10859363B2 (en) * | 2017-09-27 | 2020-12-08 | Stanley Black & Decker, Inc. | Tape rule assembly with linear optical encoder for sensing human-readable graduations of length |
US20200208954A1 (en) * | 2018-12-26 | 2020-07-02 | Fujitsu Component Limited | Measuring instrument |
US11415402B2 (en) * | 2018-12-26 | 2022-08-16 | Fujitsu Component Limited | Measuring instrument |
Also Published As
Publication number | Publication date |
---|---|
US20230122542A1 (en) | 2023-04-20 |
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